Results 31 to 40 of about 1,907 (179)

Reduction of elasmobranch by-catch in the hake semipelagic near-bottom longline fishery in the Algarve (Southern Portugal) [PDF]

, 2003
Elasmobranch fish, particularly deep-sea sharks, are the most important component of the by-catch of the hake semipelagic near-bottom 'pedra-e-bola' longline fishery in the Algarve (South Portugal) and most of these fish are discarded. The effects of the
Alheit J, Arimoto T, Arimoto T, Bjordal A, Bonfil RS, Buencuerpo V, Campbell D, Direccao-Geral das Pescas e Aquicultura., Erzini K, Erzini K, Francis MP, Goodyear CP, Hazin FHV, JOAQUIM RIBEIRO, JORGE MS GONCALVES, KARIM ERZINI, Lopes RJ, LUIS BENTES, Matsuoka T, PEDRO G LINO, Pratt HL, RUI COELHO, Russell GM, Smale MJ, Wintner SP, Yudin KG   +25 more
core   +1 more source

Allele co-segregation and haplotype diversity of MHC IIβ genes in the small-spotted catshark Scyliorhinus canicula. [PDF]

Immunogenetics
Abstract The major histocompatibility complex (MHC) constitutes a functionally relevant multigene family playing an essential role in the adaptive immune responses of jawed vertebrates, being directly involved in pathogen recognition.
Rota A, Veríssimo A, Gaigher A.
europepmc   +3 more sources

Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress

Biology, 2023
Climate change is leading to the loss of oxygen content in the oceans and endangering the survival of many marine species. Due to sea surface temperature warming and changing circulation, the ocean has become more stratified and is consequently losing ...
Jaquelino Varela, Sandra Martins, Melanie Court, Catarina Pereira Santos, José Ricardo Paula, Inês João Ferreira, Mário Diniz, Tiago Repolho, Rui Rosa   +8 more
doaj   +1 more source

Feeding ecology of five commercial shark species of the Celtic Sea through stable isotope and trace metal analysis [PDF]

, 2005
In order to trace their feeding habits, stable carbon and nitrogen isotope ratios (delta(15)N and delta(13)C), as well as trace metal concentrations (Zn, Cd, Fe, Cu, Se and Hg) were analysed in the tissues of five commercial shark species from the Celtic
Adams, Atwell, Boening, Bosley, Bowen, Bustamante, Bustamante, Carasson, Compagno, Cortès, Cortès, Das, Das, Dauby, Dauby, De Niro, De Niro, Debacker, Ellis, Estrada, Fisk, Fisk, Forrester, Fry, Greig, Hansson, Hecky, Hesslein, Hobson, Hobson, Hobson, Hobson, Hobson, Holden, J.M. Bouquegneau, Jarman, Joiris, K. Das, Kai, Kress, Leah, Leonzio, Lyle, Meaburn, Mejuto Marti, Michener, Miller, N. Domi, Olive, Owens, Pauly, Penedo de Pinho, Peterson, Pinnegar, Pinnegar, Post, Storelli, Storelli, Storelli, Storelli, Van Waarde, Vander Zanden, Velasco, Walker, Wheeler   +64 more
core   +1 more source

Characterization of Gonadotropin-Releasing Hormone (GnRH) Genes From Cartilaginous Fish: Evolutionary Perspectives

Frontiers in Neuroscience, 2018
The neuropeptide gonadotropin-releasing hormone (GnRH) plays an important role in the control of reproductive functions. Vertebrates possess multiple GnRH forms that are classified into three main groups, namely GnRH1, GnRH2, and GnRH3.
Anne-Laure Gaillard, Boon-Hui Tay, Daniela I. Pérez Sirkin, Anne-Gaëlle Lafont, Céline De Flori, Paula G. Vissio, Sylvie Mazan, Sylvie Dufour, Byrappa Venkatesh, Hervé Tostivint   +9 more
doaj   +1 more source

Photo‐identification as a tool to study small‐spotted catshark Scyliorhinus canicula

Journal of Fish Biology, 2018
Photo‐identification (photo‐ID) was tested as a means to identify individual small‐spotted catsharks Scyliorhinus canicula. The spotting pattern of the caudal region of S. canicula was used for the tests and revealed that photo‐ID is an efficient method to identify individuals.
Navarro, Joan, Perezgrueso, J., Barría, Claudio, Coll, Marta   +3 more
openaire   +3 more sources

Dermal Denticles of Three Slowly Swimming Shark Species: Microscopy and Flow Visualization

Biomimetics, 2019
Shark skin has for many years inspired engineers to produce biomimetic structures reducing surface drag or acting as an anti-fouling layer. Both effects are presumed to be consequences of the structure of shark skin that is composed of arrays of so ...
Katrine Feld, Anne Noer Kolborg, Camilla Marie Nyborg, Mirko Salewski, John Fleng Steffensen, Kirstine Berg-Sørensen   +5 more
doaj   +1 more source

Impact of Prevalence Ratios of Chondroitin Sulfate (CS)- 4 and -6 Isomers Derived from Marine Sources in Cell Proliferation and Chondrogenic Differentiation Processes

Marine Drugs, 2020
Osteoarthritis is the most prevalent rheumatic disease. During disease progression, differences have been described in the prevalence of chondroitin sulfate (CS) isomers.
Estefanía López-Senra, Paula Casal-Beiroa, Miriam López-Álvarez, Julia Serra, Pío González, Jesus Valcarcel, José Antonio Vázquez, Elena F. Burguera, Francisco J. Blanco, Joana Magalhães   +9 more
doaj   +1 more source

By-catch species susceptibilities and potential for survival in Algarve (southern Portugal) deep-water crustacean trawl fishery [PDF]

, 2018
Bottom trawling for crustaceans in Portuguese coastal waters is an important fishery in terms of revenue, despite its negative impacts on deep-sea ecosystems.
Ana C. Adão, Benoît, Benoît, Borges, Breen, Broadhurst, Campos, Carlson, Castro, Castro, Catchpole, Clark, Clarke, Costa, Cowles, Davis, Davis, Davis, Davis, Davis, Depestele, Erzini, Gingerich, Helfman, Hill, Huse, Kelleher, Laptikhovsky, Leitão, Marçalo, Michael Breen, Monteiro, Moritz Eichert, Nichol, Pusceddu, Revill, Rodríguez-Cabello, Rummer, Teresa C. Borges, Uhlmann, Yang   +40 more
core   +4 more sources

Application of spatially robust stereo-BRUV sampling for quantifying fish assemblages in UK marine protected areas. [PDF]

Ecol Appl
Abstract Marine protected areas (MPAs) often lack adequate data on the status of marine assemblages to support evidence‐based management. Stereo baited remote underwater video (BRUV) systems offer a powerful, low‐cost tool for collecting ecological data, yet they remain underutilized in the North East Atlantic, especially compared to more invasive ...
Exeter OM, Broderick AC, Harrison XA, Garzon F, Morcom S, Pender R, Russell T, Saunders I, Somerfield PJ, Sugar K, Trundle C, Webber J, Hooper T, Metcalfe K.   +13 more
europepmc   +2 more sources